Malicious PDF — malware analysis report

Static analysis result for SHA-256 df388ab99dc5cbdd…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 03:36:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 73a60f1eee3d22d4e51dc0955eef05f0 SHA-1: 8bbe54060c86035c0498a87cfe78a441ac3a37f5 SHA-256: df388ab99dc5cbdd21acd79e681f322ec7defe1e5b631def3a3aa24927dafc83
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The document contains multiple embedded URLs that likely serve as part of a phishing or scam campaign. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to lead the user to a malicious website, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/moon-static-coin-master-generator-hacks-free-game-hack In PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-flip-master-coins_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bdd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BDD 25096 bytes
SHA-256: 581bf02dd9f2018533f752d4c53160ea7b2255c2e5bca6eee45b3d952a6a4564
font_01_sfnt_off00008547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8547 17880 bytes
SHA-256: 12faecc5962592d277de3e4fe4bc4692cb4c94937b2745323735b12f582b8c4f

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